diff --git a/core/src/main/java/com/klaytn/caver/wallet/keyring/KeyringFactory.java b/core/src/main/java/com/klaytn/caver/wallet/keyring/KeyringFactory.java
index feb418208..d64fb1449 100644
--- a/core/src/main/java/com/klaytn/caver/wallet/keyring/KeyringFactory.java
+++ b/core/src/main/java/com/klaytn/caver/wallet/keyring/KeyringFactory.java
@@ -101,7 +101,7 @@ public static String[] generateMultipleKeys(int num, String entropy) {
      * @param numArr An array containing the number of keys for each role.
      * @return List
      */
-    public static List<String[]> generateRolBasedKeys(int[] numArr) {
+    public static List<String[]> generateRoleBasedKeys(int[] numArr) {
         return generateRoleBasedKeys(numArr, null);
     }
 
diff --git a/core/src/main/java/com/klaytn/caver/wallet/keyring/wrapper/KeyringFactoryWrapper.java b/core/src/main/java/com/klaytn/caver/wallet/keyring/wrapper/KeyringFactoryWrapper.java
index ebe58ca6e..b5b0e387c 100644
--- a/core/src/main/java/com/klaytn/caver/wallet/keyring/wrapper/KeyringFactoryWrapper.java
+++ b/core/src/main/java/com/klaytn/caver/wallet/keyring/wrapper/KeyringFactoryWrapper.java
@@ -91,8 +91,8 @@ public String[] generateMultipleKeys(int num, String entropy) {
      * @param numArr An array containing the number of keys for each role.
      * @return List
      */
-    public List<String[]> generateRolBasedKeys(int[] numArr) {
-        return KeyringFactory.generateRolBasedKeys(numArr);
+    public List<String[]> generateRoleBasedKeys(int[] numArr) {
+        return KeyringFactory.generateRoleBasedKeys(numArr);
     }
 
     /**
diff --git a/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedAccountUpdateTest.java b/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedAccountUpdateTest.java
index 7884d71b0..cad64f224 100644
--- a/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedAccountUpdateTest.java
+++ b/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedAccountUpdateTest.java
@@ -760,7 +760,7 @@ public void before() {
             );
             roleBasedKeyring = caver.wallet.keyring.createWithRoleBasedKey(
                     feePayer,
-                    caver.wallet.keyring.generateRolBasedKeys(new int[]{3, 4, 5})
+                    caver.wallet.keyring.generateRoleBasedKeys(new int[]{3, 4, 5})
             );
 
             account = Account.createWithAccountKeyFail(from);
diff --git a/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedAccountUpdateWithRatioTest.java b/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedAccountUpdateWithRatioTest.java
index 9f5921a9b..286aa1e79 100644
--- a/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedAccountUpdateWithRatioTest.java
+++ b/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedAccountUpdateWithRatioTest.java
@@ -874,7 +874,7 @@ public void before() {
             );
             roleBasedKeyring = caver.wallet.keyring.createWithRoleBasedKey(
                     feePayer,
-                    caver.wallet.keyring.generateRolBasedKeys(new int[]{3, 4, 5})
+                    caver.wallet.keyring.generateRoleBasedKeys(new int[]{3, 4, 5})
             );
 
             account = Account.createWithAccountKeyFail(from);
diff --git a/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedCancelTest.java b/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedCancelTest.java
index 5c8dacce3..65fc69bf8 100644
--- a/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedCancelTest.java
+++ b/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedCancelTest.java
@@ -547,7 +547,7 @@ public void before() {
             );
             roleBasedKeyring = caver.wallet.keyring.createWithRoleBasedKey(
                     feePayer,
-                    caver.wallet.keyring.generateRolBasedKeys(new int[]{3, 4, 5})
+                    caver.wallet.keyring.generateRoleBasedKeys(new int[]{3, 4, 5})
             );
         }
 
diff --git a/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedCancelWithRatioTest.java b/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedCancelWithRatioTest.java
index b7c72e5b3..ba38795c8 100644
--- a/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedCancelWithRatioTest.java
+++ b/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedCancelWithRatioTest.java
@@ -692,7 +692,7 @@ public void before() {
             );
             roleBasedKeyring = caver.wallet.keyring.createWithRoleBasedKey(
                     feePayer,
-                    caver.wallet.keyring.generateRolBasedKeys(new int[]{3, 4, 5})
+                    caver.wallet.keyring.generateRoleBasedKeys(new int[]{3, 4, 5})
             );
         }
 
diff --git a/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedChainDataAnchoringTest.java b/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedChainDataAnchoringTest.java
index c01b63a06..778780cfc 100644
--- a/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedChainDataAnchoringTest.java
+++ b/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedChainDataAnchoringTest.java
@@ -643,7 +643,7 @@ public void before() {
             );
             roleBasedKeyring = caver.wallet.keyring.createWithRoleBasedKey(
                     feePayer,
-                    caver.wallet.keyring.generateRolBasedKeys(new int[]{3, 4, 5})
+                    caver.wallet.keyring.generateRoleBasedKeys(new int[]{3, 4, 5})
             );
         }
 
diff --git a/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedChainDataAnchoringWithRatioTest.java b/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedChainDataAnchoringWithRatioTest.java
index 01ad7569f..ed0ebfb28 100644
--- a/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedChainDataAnchoringWithRatioTest.java
+++ b/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedChainDataAnchoringWithRatioTest.java
@@ -802,7 +802,7 @@ public void before() {
             );
             roleBasedKeyring = caver.wallet.keyring.createWithRoleBasedKey(
                     feePayer,
-                    caver.wallet.keyring.generateRolBasedKeys(new int[]{3, 4, 5})
+                    caver.wallet.keyring.generateRoleBasedKeys(new int[]{3, 4, 5})
             );
         }
 
diff --git a/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedSmartContractDeployTest.java b/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedSmartContractDeployTest.java
index 906deecac..b06bd23f8 100644
--- a/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedSmartContractDeployTest.java
+++ b/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedSmartContractDeployTest.java
@@ -873,7 +873,7 @@ public void before() {
             );
             roleBasedKeyring = caver.wallet.keyring.createWithRoleBasedKey(
                     feePayer,
-                    caver.wallet.keyring.generateRolBasedKeys(new int[]{3, 4, 5})
+                    caver.wallet.keyring.generateRoleBasedKeys(new int[]{3, 4, 5})
             );
         }
 
diff --git a/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedSmartContractDeployWithRatioTest.java b/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedSmartContractDeployWithRatioTest.java
index 609e3dd4b..f27c0d501 100644
--- a/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedSmartContractDeployWithRatioTest.java
+++ b/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedSmartContractDeployWithRatioTest.java
@@ -1035,7 +1035,7 @@ public void before() {
 
             singleKeyring = caver.wallet.keyring.createWithSingleKey(feePayer, feePayerPrivateKey);
             multipleKeyring = caver.wallet.keyring.createWithMultipleKey(feePayer, caver.wallet.keyring.generateMultipleKeys(8));
-            roleBasedKeyring = caver.wallet.keyring.createWithRoleBasedKey(feePayer, caver.wallet.keyring.generateRolBasedKeys(new int[]{3, 4, 5}));
+            roleBasedKeyring = caver.wallet.keyring.createWithRoleBasedKey(feePayer, caver.wallet.keyring.generateRoleBasedKeys(new int[]{3, 4, 5}));
         }
 
         @Test
diff --git a/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedSmartContractExecutionTest.java b/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedSmartContractExecutionTest.java
index a9bddf7a8..1c93fa005 100644
--- a/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedSmartContractExecutionTest.java
+++ b/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedSmartContractExecutionTest.java
@@ -824,7 +824,7 @@ public void before() {
             );
             roleBasedKeyring = caver.wallet.keyring.createWithRoleBasedKey(
                     feePayer,
-                    caver.wallet.keyring.generateRolBasedKeys(new int[]{3, 4, 5})
+                    caver.wallet.keyring.generateRoleBasedKeys(new int[]{3, 4, 5})
             );
         }
 
diff --git a/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedSmartContractExecutionWithRatioTest.java b/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedSmartContractExecutionWithRatioTest.java
index bac918dbd..207b9dcc9 100644
--- a/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedSmartContractExecutionWithRatioTest.java
+++ b/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedSmartContractExecutionWithRatioTest.java
@@ -1010,7 +1010,7 @@ public void before() {
             );
             roleBasedKeyring = caver.wallet.keyring.createWithRoleBasedKey(
                     feePayer,
-                    caver.wallet.keyring.generateRolBasedKeys(new int[]{3, 4, 5})
+                    caver.wallet.keyring.generateRoleBasedKeys(new int[]{3, 4, 5})
             );
         }
 
diff --git a/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedValueTransferMemoTest.java b/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedValueTransferMemoTest.java
index b93a2a04c..41faabeb5 100644
--- a/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedValueTransferMemoTest.java
+++ b/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedValueTransferMemoTest.java
@@ -794,7 +794,7 @@ public void before() {
             );
             roleBasedKeyring = caver.wallet.keyring.createWithRoleBasedKey(
                     feePayer,
-                    caver.wallet.keyring.generateRolBasedKeys(new int[]{3, 4, 5})
+                    caver.wallet.keyring.generateRoleBasedKeys(new int[]{3, 4, 5})
             );
         }
 
diff --git a/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedValueTransferMemoWithRatioTest.java b/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedValueTransferMemoWithRatioTest.java
index e150bae18..6a16e6be3 100644
--- a/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedValueTransferMemoWithRatioTest.java
+++ b/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedValueTransferMemoWithRatioTest.java
@@ -12,7 +12,6 @@
 import org.junit.experimental.runners.Enclosed;
 import org.junit.rules.ExpectedException;
 import org.junit.runner.RunWith;
-import org.junit.runners.Suite;
 import org.web3j.utils.Numeric;
 
 import java.io.IOException;
@@ -1053,7 +1052,7 @@ public void before() {
 
             singleKeyring = caver.wallet.keyring.createWithSingleKey(feePayer, feePayerPrivateKey);
             multipleKeyring = caver.wallet.keyring.createWithMultipleKey(feePayer, caver.wallet.keyring.generateMultipleKeys(8));
-            roleBasedKeyring = caver.wallet.keyring.createWithRoleBasedKey(feePayer, caver.wallet.keyring.generateRolBasedKeys(new int[]{3, 4, 5}));
+            roleBasedKeyring = caver.wallet.keyring.createWithRoleBasedKey(feePayer, caver.wallet.keyring.generateRoleBasedKeys(new int[]{3, 4, 5}));
         }
 
         @Test
diff --git a/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedValueTransferTest.java b/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedValueTransferTest.java
index 0a6186a5f..5c9ab8017 100644
--- a/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedValueTransferTest.java
+++ b/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedValueTransferTest.java
@@ -766,7 +766,7 @@ public void before() {
             );
             roleBasedKeyring = caver.wallet.keyring.createWithRoleBasedKey(
                     feePayer,
-                    caver.wallet.keyring.generateRolBasedKeys(new int[]{3, 4, 5})
+                    caver.wallet.keyring.generateRoleBasedKeys(new int[]{3, 4, 5})
             );
         }
 
diff --git a/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedValueTransferWithRatioTest.java b/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedValueTransferWithRatioTest.java
index 146f6b9d9..c0992e8d5 100644
--- a/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedValueTransferWithRatioTest.java
+++ b/core/src/test/java/com/klaytn/caver/common/transaction/FeeDelegatedValueTransferWithRatioTest.java
@@ -928,7 +928,7 @@ public void before() {
                     caver.wallet.keyring.generateMultipleKeys(8)
             );
             roleBasedKeyring = caver.wallet.keyring.createWithRoleBasedKey(feePayer,
-                    caver.wallet.keyring.generateRolBasedKeys(new int[]{3, 4, 5})
+                    caver.wallet.keyring.generateRoleBasedKeys(new int[]{3, 4, 5})
             );
         }
 
diff --git a/core/src/test/java/com/klaytn/caver/common/wallet/KeyringContainerTest.java b/core/src/test/java/com/klaytn/caver/common/wallet/KeyringContainerTest.java
index 5d1da660d..79d81367f 100644
--- a/core/src/test/java/com/klaytn/caver/common/wallet/KeyringContainerTest.java
+++ b/core/src/test/java/com/klaytn/caver/common/wallet/KeyringContainerTest.java
@@ -558,7 +558,7 @@ public void keyringWithChecksumAddress() {
 
             RoleBasedKeyring roleBasedKeyring = caver.wallet.keyring.createWithRoleBasedKey(
                     checksumAddress,
-                    caver.wallet.keyring.generateRolBasedKeys(new int[]{2, 2, 1})
+                    caver.wallet.keyring.generateRoleBasedKeys(new int[]{2, 2, 1})
             );
             caver.wallet.add(roleBasedKeyring);
             caver.wallet.remove(multipleKeyring.getAddress());